South Aerated Lagoons Wastewater Treatment Plant, Rimbey, Alberta

South Aerated Lagoons is a municipal wastewater treatment plant located in Rimbey, Alberta, Canada. It serves a small community of approximately 1,007 residents, providing essential wastewater treatment for the town. The plant is situated in the interior plains of Alberta, a region characterized by cold winters and a semi-arid climate. The plant operates at a secondary treatment level, which is appropriate for its small population size. Under Canadian federal and provincial regulations, secondary treatment is the standard for municipal wastewater to reduce organic matter and suspended solids. The plant discharges a daily volume of 452.00 cubic meters, reflecting the modest scale of the community it serves. The treated effluent is released into the local watershed, which ultimately drains into the North Saskatchewan River basin. This river system flows eastward into Lake Winnipeg and eventually into Hudson Bay. The plant plays a key role in protecting downstream water quality, supporting aquatic life and recreational uses in the region.

The plant discharges into a local watercourse that is part of the North Saskatchewan River watershed. This river flows through central Alberta and Saskatchewan, eventually reaching Lake Winnipeg and Hudson Bay. The downstream environment supports diverse aquatic species, including fish such as walleye and northern pike, and provides water for agriculture and communities. Protecting this watershed from nutrient pollution is critical to maintaining ecological balance.